If short sellers can destroy firm value by manipulating prices down, an informed blockholder has a powerful natural incentive to protect the value of his stake by trading against them. However, he also has a potentially conflicting incentive to use his information to generate trading profits. We...

We study how interactions between financing and investment decisions can shape firm boundaries in dynamic product markets. In particular, we model a new product market opportunity as a growth option and ask whether it is best exploited by a large incumbent firm (Integration) or by a separate,...

We study how a firm's optimal integration decision depends on the interaction between the product markets and capital markets in which it operates. An integrated firm operates an internal capital market, which provides allocative flexibility but does not allow the firm to commit to specific...

I show that firms may optimally place their own equity with other firms in anticipation of possible future corporate control activity. In the model, a target and potential acquirer can negotiate before synergy values are learned. I find that equity implements an optimal mechanism, benefiting...